CD34 and neoplasm: The tumor cells showed strong positivity for Vimentin, FGF, PDGFRa, Factor VIII, Ulex europaeus, FLI1, CD31 and CD34; VE-cadherin, VEFGR and VEGFR3 were focal positive in epithelioid tumor cells; there was p53 overexpression (25%) and Ki67 proliferative rate ranged from 10 to 40% (Figure4).